Recurrent hyperthyroidism after thyroidectomy.

For 53 patients with toxic recurrent goiter (TRG), the interval between thyroidectomy and recurrent hyperthyroidism range from six months to 50 years (average, 12.4 +/- 11.9 years). Recurrent hyperthyroidism may occur in older patients for whom cardiac decompensation may be the initial manifestation. Reports on surgically treated hyperthyroid patients may underestimate the incidence of TRG unless follow-up is extended for many years.